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Changes for page 7 Concept Roles

Last modified by Artur on 2025/09/10 11:19
From version 1.2
edited by Helena
on 2025/05/26 11:17
Change comment: Update document after refactoring.
To version 7.2
edited by Elena
on 2025/06/16 20:09
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1 +Attribute|Component|Concept|Concept scheme|Cross-domain concept|Data set|Data structure definition|Dimension|Measure|Statistical data and metadata exchange|Unit of measure
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1 -= 7 Concept Roles =
1 +{{box title="**Contents**"}}
2 +{{toc/}}
3 +{{/box}}
2 2  
3 3  == 7.1 Overview ==
4 4  
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8 8  **Geography** - in a [[data set>>doc:sdmx:Glossary.Data set.WebHome]] the content of this [[Component>>doc:sdmx:Glossary.Component.WebHome]] contains information on the geographic location of the observation values
9 9  **Unit** **of [[Measure>>doc:sdmx:Glossary.Measure.WebHome]]** - in a [[data set>>doc:sdmx:Glossary.Data set.WebHome]] the content of this [[Component>>doc:sdmx:Glossary.Component.WebHome]] contains information on the [[unit of measure>>doc:sdmx:Glossary.Unit of measure.WebHome]] of the observation values
10 10  
11 -In order for these roles to be extensible and also to enable user communities to maintain community-specific roles, the roles are maintained in a controlled vocabulary which is implemented in [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] as (% style="color:#e74c3c" %)Concepts(%%) in a [[Concept Scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]]. The [[Component>>doc:sdmx:Glossary.Component.WebHome]] optionally references this (% style="color:#e74c3c" %)Concept(%%) if it is required to declare the role explicitly. Note that a [[Component>>doc:sdmx:Glossary.Component.WebHome]] can play more than one role and therefore multiple “role” (% style="color:#e74c3c" %)concepts(%%) can be referenced.
13 +In order for these roles to be extensible and also to enable user communities to maintain community-specific roles, the roles are maintained in a controlled vocabulary which is implemented in [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] as (% style="color:#e74c3c" %)[[Concepts>>doc:sdmx:Glossary.Concept.WebHome]](%%) in a [[Concept Scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]]. The [[Component>>doc:sdmx:Glossary.Component.WebHome]] optionally references this (% style="color:#e74c3c" %)[[Concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) if it is required to declare the role explicitly. Note that a [[Component>>doc:sdmx:Glossary.Component.WebHome]] can play more than one role and therefore multiple “role” (% style="color:#e74c3c" %)[[concepts>>doc:sdmx:Glossary.Concept.WebHome]](%%) can be referenced.
12 12  
13 13  == 7.2 Information Model ==
14 14  
15 15  The Information Model for this is shown below:
16 16  
17 -[[image:1747855024745-946.png]]
19 +[[image:1748248853846-124.png]]
18 18  
19 19  **Figure 8: Information Model Extract for Concept Role**
20 20  
21 -It is possible to specify zero or more (% style="color:#e74c3c" %)concept(%%) roles for a [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] and Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] (but not the ReportingYearStartDay). The Time [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], Primary [[Measure>>doc:sdmx:Glossary.Measure.WebHome]], and the [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] ReportingYearStartDay have explicitly defined roles and cannot be further specified with additional (% style="color:#e74c3c" %)concept(%%) roles.
23 +It is possible to specify zero or more (% style="color:#e74c3c" %)[[concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) roles for a [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] and Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] (but not the ReportingYearStartDay). The Time [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], Primary [[Measure>>doc:sdmx:Glossary.Measure.WebHome]], and the [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] ReportingYearStartDay have explicitly defined roles and cannot be further specified with additional (% style="color:#e74c3c" %)[[concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) roles.
22 22  
23 23  == 7.3 Technical Mechanism ==
24 24  
25 -The mechanism for maintain and using (% style="color:#e74c3c" %)concept(%%) roles is as follows:
27 +The mechanism for maintain and using (% style="color:#e74c3c" %)[[concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) roles is as follows:
26 26  
27 -1. Any recognized Agency can have a [[concept scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]] that contains (% style="color:#e74c3c" %)concepts(%%) that identify (% style="color:#e74c3c" %)concept(%%) roles. Indeed, from a technical perspective any agency can have more than one of these schemes, though this is not recommended.
28 -1. The [[concept scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]] that contains the “role” (% style="color:#e74c3c" %)concepts(%%) can contain (% style="color:#e74c3c" %)concepts(%%) that do not play a role.
29 -1. There is no explicit indication on the (% style="color:#e74c3c" %)Concept(%%) whether it is a ‘role” (% style="color:#e74c3c" %)concept(%%).
30 -1. Therefore, any (% style="color:#e74c3c" %)concept(%%) in any [[concept scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]] is capable of being a “role” (% style="color:#e74c3c" %)concept(%%).
31 -1. It is the responsibility of Agencies to ensure their community knows which (% style="color:#e74c3c" %)concepts(%%) in which [[concept schemes>>doc:sdmx:Glossary.Concept scheme.WebHome]] play a “role” and the significance and interpretation of this role. In other words, such (% style="color:#e74c3c" %)concepts(%%) must be known by applications, there is no technical mechanism that can inform an application on how to process such a “role”.
32 -1. If the (% style="color:#e74c3c" %)concept(%%) referenced in the (% style="color:#e74c3c" %)Concept(%%) Identity in a [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]] [[component>>doc:sdmx:Glossary.Component.WebHome]] ([[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]]) is contained in the [[concept scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]] containing (% style="color:#e74c3c" %)concept(%%) roles then the [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]] [[component>>doc:sdmx:Glossary.Component.WebHome]] could play the role implied by the (% style="color:#e74c3c" %)concept(%%), if this is understood by the processing application.
33 -1. If the (% style="color:#e74c3c" %)concept(%%) referenced in the (% style="color:#e74c3c" %)Concept(%%) Identity in a [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]] [[component>>doc:sdmx:Glossary.Component.WebHome]] ([[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]]) is not contained in the [[concept scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]] containing (% style="color:#e74c3c" %)concept(%%) roles, and the [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]] [[component>>doc:sdmx:Glossary.Component.WebHome]] is playing a role, then the (% style="color:#e74c3c" %)concept(%%) role is identified by the (% style="color:#e74c3c" %)Concept(%%) Role in the schema.
29 +1. Any recognized Agency can have a [[concept scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]] that contains (% style="color:#e74c3c" %)[[concepts>>doc:sdmx:Glossary.Concept.WebHome]](%%) that identify (% style="color:#e74c3c" %)[[concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) roles. Indeed, from a technical perspective any agency can have more than one of these schemes, though this is not recommended.
30 +1. The [[concept scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]] that contains the “role” (% style="color:#e74c3c" %)[[concepts>>doc:sdmx:Glossary.Concept.WebHome]](%%) can contain (% style="color:#e74c3c" %)[[concepts>>doc:sdmx:Glossary.Concept.WebHome]](%%) that do not play a role.
31 +1. There is no explicit indication on the (% style="color:#e74c3c" %)[[Concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) whether it is a ‘role” (% style="color:#e74c3c" %)[[concept>>doc:sdmx:Glossary.Concept.WebHome]](%%).
32 +1. Therefore, any (% style="color:#e74c3c" %)[[concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) in any [[concept scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]] is capable of being a “role” (% style="color:#e74c3c" %)[[concept>>doc:sdmx:Glossary.Concept.WebHome]](%%).
33 +1. It is the responsibility of Agencies to ensure their community knows which (% style="color:#e74c3c" %)[[concepts>>doc:sdmx:Glossary.Concept.WebHome]](%%) in which [[concept schemes>>doc:sdmx:Glossary.Concept scheme.WebHome]] play a “role” and the significance and interpretation of this role. In other words, such (% style="color:#e74c3c" %)[[concepts>>doc:sdmx:Glossary.Concept.WebHome]](%%) must be known by applications, there is no technical mechanism that can inform an application on how to process such a “role”.
34 +1. If the (% style="color:#e74c3c" %)[[concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) referenced in the (% style="color:#e74c3c" %)[[Concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) Identity in a [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]] [[component>>doc:sdmx:Glossary.Component.WebHome]] ([[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]]) is contained in the [[concept scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]] containing (% style="color:#e74c3c" %)[[concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) roles then the [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]] [[component>>doc:sdmx:Glossary.Component.WebHome]] could play the role implied by the (% style="color:#e74c3c" %)[[concept>>doc:sdmx:Glossary.Concept.WebHome]](%%), if this is understood by the processing application.
35 +1. If the (% style="color:#e74c3c" %)[[concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) referenced in the (% style="color:#e74c3c" %)[[Concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) Identity in a [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]] [[component>>doc:sdmx:Glossary.Component.WebHome]] ([[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]]) is not contained in the [[concept scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]] containing (% style="color:#e74c3c" %)[[concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) roles, and the [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]] [[component>>doc:sdmx:Glossary.Component.WebHome]] is playing a role, then the (% style="color:#e74c3c" %)[[concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) role is identified by the (% style="color:#e74c3c" %)[[Concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) Role in the schema.
34 34  
35 35  == 7.4 SDMX-ML Examples in a DSD ==
36 36  
37 -The [[Cross-Domain Concept>>doc:sdmx:Glossary.Cross-domain concept.WebHome]] Scheme maintained by [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] contains (% style="color:#e74c3c" %)concept(%%) role (% style="color:#e74c3c" %)concepts(%%) (FREQ chosen as an example).
39 +The [[Cross-Domain Concept>>doc:sdmx:Glossary.Cross-domain concept.WebHome]] Scheme maintained by [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] contains (% style="color:#e74c3c" %)[[concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) role (% style="color:#e74c3c" %)[[concepts>>doc:sdmx:Glossary.Concept.WebHome]](%%) (FREQ chosen as an example).
38 38  
39 -[[image:1747855054559-410.png]]
41 +[[image:1748248881670-659.png]]
40 40  
41 41  Whether this is a role or not depends upon the application understanding that FREQ in the [[Cross-Domain Concept>>doc:sdmx:Glossary.Cross-domain concept.WebHome]] Scheme is a role of Frequency.
42 42  
43 43  Using a [[Concept Scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]] that is not the [[Cross-Domain Concept>>doc:sdmx:Glossary.Cross-domain concept.WebHome]] Scheme where it is required to assign a role using the [[Cross-Domain Concept>>doc:sdmx:Glossary.Cross-domain concept.WebHome]] Scheme. Again FREQ is chosen as the example.
44 44  
45 -[[image:1747855075263-887.png]]
47 +[[image:1748248908247-956.png]]
46 46  
47 -This explicitly states that this [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] is playing a role identified by the FREQ (% style="color:#e74c3c" %)concept(%%) in the [[Cross-Domain Concept>>doc:sdmx:Glossary.Cross-domain concept.WebHome]] Scheme. Again the application needs to understand what FREQ in the [[Cross-Domain Concept>>doc:sdmx:Glossary.Cross-domain concept.WebHome]] Scheme implies in terms of a role.
49 +T
48 48  
49 -This is all that is required for interoperability within a community. The important point is that a community must recognise a specific Agency as having the authority to define (% style="color:#e74c3c" %)concept(%%) roles and to maintain these “role” (% style="color:#e74c3c" %)concepts(%%) in a [[concept scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]] together with documentation on the meaning of the role and any relevant processing implications. This will then ensure there is interoperability between systems that understand the use of these (% style="color:#e74c3c" %)concepts(%%).
51 +his explicitly states that this [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] is playing a role identified by the FREQ (% style="color:#e74c3c" %)[[concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) in the [[Cross-Domain Concept>>doc:sdmx:Glossary.Cross-domain concept.WebHome]] Scheme. Again the application needs to understand what FREQ in the [[Cross-Domain Concept>>doc:sdmx:Glossary.Cross-domain concept.WebHome]] Scheme implies in terms of a role.
50 50  
51 -Note that each of the [[Components>>doc:sdmx:Glossary.Component.WebHome]] (Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]], Primary [[Measure>>doc:sdmx:Glossary.Measure.WebHome]], [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], Time [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]]) has a mandatory identity association ((% style="color:#e74c3c" %)Concept(%%) Identity) and if this (% style="color:#e74c3c" %)Concept(%%) also identifies the role then it is possible to state this by
53 +This is all that is required for interoperability within a community. The important point is that a community must recognise a specific Agency as having the authority to define (% style="color:#e74c3c" %)[[concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) roles and to maintain these “role” (% style="color:#e74c3c" %)[[concepts>>doc:sdmx:Glossary.Concept.WebHome]](%%) in a [[concept scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]] together with documentation on the meaning of the role and any relevant processing implications. This will then ensure there is interoperability between systems that understand the use of these (% style="color:#e74c3c" %)[[concepts>>doc:sdmx:Glossary.Concept.WebHome]](%%).
52 52  
55 +Note that each of the [[Components>>doc:sdmx:Glossary.Component.WebHome]] (Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]], Primary [[Measure>>doc:sdmx:Glossary.Measure.WebHome]], [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], Time [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]]) has a mandatory identity association ((% style="color:#e74c3c" %)[[Concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) Identity) and if this (% style="color:#e74c3c" %)[[Concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) also identifies the role then it is possible to state this by
56 +
53 53  == 7.5 SDMX Cross Domain Concept Scheme ==
54 54  
55 -All (% style="color:#e74c3c" %)concepts(%%) in the [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] Cross Domain [[Concept Scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]] are capable of playing a role and this scheme will contain all of the roles that were allowed at (% style="color:#e74c3c" %)version(%%) 2.0 and will be maintained with new roles that are agreed at the (% style="color:#e74c3c" %)level(%%) of the community using the Cross Domain [[Concept Scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]].
59 +All (% style="color:#e74c3c" %)[[concepts>>doc:sdmx:Glossary.Concept.WebHome]](%%) in the [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] Cross Domain [[Concept Scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]] are capable of playing a role and this scheme will contain all of the roles that were allowed at (% style="color: rgb(231, 76, 60); color: rgb(231, 76, 60)" %)version(%%) 2.0 and will be maintained with new roles that are agreed at the level of the community using the Cross Domain [[Concept Scheme>>doc:sdmx:Glossary.Concept scheme.WebHome]].
56 56  
57 -The table below lists the (% style="color:#e74c3c" %)Concepts(%%) that need to be in this scheme either for compatibility with (% style="color:#e74c3c" %)version(%%) 2.0 or because of requests for additional roles at (% style="color:#e74c3c" %)version(%%) 2.1 which have been accepted.
61 +The table below lists the [[Concepts>>doc:sdmx:Glossary.Concept.WebHome]] that need to be in this scheme either for compatibility with version 2.0 or because of requests for additional roles at version 2.1 which have been accepted.
58 58  
59 -Note that each of the [[Components>>doc:sdmx:Glossary.Component.WebHome]] (Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]], Primary [[Measure>>doc:sdmx:Glossary.Measure.WebHome]], [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], Time [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]]) has a mandatory identity association ((% style="color:#e74c3c" %)Concept(%%) Identity) and if this (% style="color:#e74c3c" %)Concept(%%) also identifies the role then it is possible to state this by means of the isRole [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] (isRole=true) Additional roles can still be specified by means of the +role association to additional (% style="color:#e74c3c" %)Concepts(%%) that identify the role.
63 +Note that each of the [[Components>>doc:sdmx:Glossary.Component.WebHome]] (Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]], Primary [[Measure>>doc:sdmx:Glossary.Measure.WebHome]], [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], Time [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]]) has a mandatory identity association ((% style="color:#e74c3c" %)[[Concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) Identity) and if this (% style="color:#e74c3c" %)[[Concept>>doc:sdmx:Glossary.Concept.WebHome]](%%) also identifies the role then it is possible to state this by means of the isRole [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] (isRole=true) Additional roles can still be specified by means of the +role association to additional (% style="color:#e74c3c" %)[[Concepts>>doc:sdmx:Glossary.Concept.WebHome]](%%) that identify the role.
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